Although many renewal and cancellation announcements for broadcast TV primetime shows for the 2012-13 season will happen prior to these dates, the broadcast network upfront events are the final date on which each network's fall schedules might be revealed.

So, you'll know no later than these dates about the fate of your favorite broadcast primetime shows. (although for the craziest of fans, cancellations revealed on the dates below really don't mean anything…)